Principal Machine Learning Engineer, Lime

🔒 Confidential Employer
Posted 28 April 2026
LOCATION
Remote
TYPE
Full-time
LEVEL
Director
SALARY
£330,000 / year
CATEGORY
Technology
This employer holds a UK Home Office sponsor license — sponsorship for this specific role is at the employer’s discretion

SKILLS

Python SQL Airflow Tensorflow Spark Pandas PyTorch System design

FULL DESCRIPTION

Principal Machine Learning Engineer, [Employer hidden — view at passion-project.co.uk]

Company: [Employer hidden]

Location: Remote from US

Salary: $240-330k + Equity and bonus

Experience Level: Senior and Expert level

Job Type: Full-time

Work Type: Remote

About the Role

[Employer hidden] is hiring a Principal Machine Learning Engineer to join the Data Science & Analytics team and build our Machine Learning Center of Excellence. In this role, you will be a senior individual contributor reporting to the Head of Data and partnering with senior software engineering leadership across [Employer hidden]’s technology teams. This role will be responsible for shaping how machine learning is built, deployed, and operated across [Employer hidden]. You will set technical direction and standards for ML infrastructure, featured development, and model lifecycle management. This role blends deep hands-on work with significant cross-team leadership and influence.

What You'll Do

  • Drive alignment across teams on ML strategy, standards, and long-term technical direction by serving as a technical leader for [Employer hidden]’s ML Center of Excellence
  • Guide recommendations for ML infrastructure, tooling, and architecture (training, serving, feature stores, experimentation, monitoring)
  • Define and evolve ML development processes, including model review, experimentation rigor, deployment, optimization, and operations
  • Establish best practices for ML monitoring, observability, alerting, and model performance health in production
  • Drive reusable feature development patterns and shared ML capabilities that enable teams to move faster and more safely
  • Partner with platform, data, and product engineering teams to ensure ML systems are reliable, scalable, and cost effective
  • Identify and prioritize opportunities where ML will improve [Employer hidden]’s product, operations, or efficiency
  • Act as a force multiplier by mentoring data scientists and machine learning engineers, raising the quality bar for machine learning across [Employer hidden]

Who You Are

  • 8+ years of professional experience in software engineering or applied ML, with a record of delivering production level systems
  • Fluency in Python and experience with modern ML frameworks (e.g., PyTorch, TensorFlow) and data tools (e.g. SQL, pandas, spark, airflow)
  • Strong foundation in ML fundamentals, including model evaluation, experimentation, optimization, production deployment, and operations
  • Strong system design skills and comfort working with distributed systems
  • Track record of influencing ML architecture and practices across multiple teams

Desirable

  • Background in domains relevant to [Employer hidden] (e.g., forecasting, optimization, pricing, marketplace dynamics)
  • Prior experience building a ML platform or center of excellence through defining ML standards, governance, or shared tooling at scale

About [Employer hidden]

Electric bike and scooter rentals

1001+ employees

B2C

Transport

Mobility

Application Instructions

Apply

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